Gourmet Burger Kitchen was launched in 2001 by three New Zealanders, including world-renowned chef Peter Gordon.

A Big Mouth burger at GBK (Image: Becky Jones)

The company prides itself on serving a variety of handcrafted burgers, made from 100 per cent prime beef, hand selected and traditionally reared on independent farms.

The October announcement outlined GBK's proposal to restructure its UK restaurant estate as part of its ongoing turnaround strategy, amid what it described as 'a challenging casual dining environment'.